Blue Monday, often called the most depressing day of the year, returns to public conversation every January. Falling on the third Monday of the month, it is commonly associated with low motivation, winter blues, and post-holiday fatigue. Despite its widespread recognition, the idea has no medical backing.
The term was introduced in the mid-2000s as part of a promotional campaign by a travel company and was later attributed to psychologist Cliff Arnall. A formula claiming to calculate peak sadness included factors like debt, weather, and broken resolutions. Mental health experts say emotions are far more complex, though January can genuinely feel emotionally heavy due to shorter daylight hours, cold weather, and financial pressures. Today, Blue Monday is viewed more as a cultural symbol than a scientific reality.
